Two
retail booklets are to be issued on 12 October 2017 each
containing four 1st class Machin definitives and two special
stamps.

One booklet contains the BB-8
and R2-D2 stamps, the other contains Maz
Kanata and Chewbacca stamps.

The booklets are printed on Security Printed Backing Paper, type 2,
but one inverted and one upright:

All the fans probably know the detail of these fictional characters, so I
shan't take a lot of space here on their write-up.

Technical details:

The 35mm square stamps are designed by Interabang using illustrations by
Malcolm Tween, and printed in lithography on ordinary gummed paper by
International Security Printers in two sheets of 48 stamps.